51001316e915fd7f0a30663e23caa190807d96367ed0ff89b7e295a8619c08cb

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 08:28

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General

Target

2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe
Size

36KB
MD5

58515856491edfae4e28dde5fe1294fc
SHA1

29465a1b65ad4bf30ea79d300ee231eec928eb1c
SHA256

51001316e915fd7f0a30663e23caa190807d96367ed0ff89b7e295a8619c08cb
SHA512

8c5df7a767d61f935989f30229f6652fdd98b2bcf572cb0758f10758e0c3d2ce2a63665b7c7fbfa74e32d514aef69c08a915fa3503ee91d6c7049f652d055fb8
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960SPluhX:bAvJCYOOvbRPDEgXRc3SSz3SPq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000233e3-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
4668	demka.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 4668	4496	2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe	87
PID 4496 wrote to memory of 4668	4496	2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe	87
PID 4496 wrote to memory of 4668	4496	2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_58515856491edfae4e28dde5fe1294fc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe

Filesize
36KB

MD5
e6a1ec9d61ada9e3034121e9ed2ded6d

SHA1
3928efe2e529f01c2800ec597e19a3234e9b1d16

SHA256
60742dece17b96022ec5a8e4c8450d28a9094aa6ae639bf0d6b72829e80e8382

SHA512
d3c9e9d3ead32ec319cd8d56b87af37228b17435f006f386399272598305fdcb8ad0a4931e1aa2bd2866f62d270d607e0397554a9c55e72a1830f9395baf86bc

Download Submit
memory/4496-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4496-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4496-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download